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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (24): 66-70.doi: 10.11924/j.issn.1000-6850.2014-0125

• 农学 农业基础科学 • 上一篇    下一篇

不同煤基腐殖酸对土壤锌淋洗效果的研究

王婧 卜玉山 张曼 刘奋武 张吴平   

  • 收稿日期:2014-01-13 修回日期:2014-02-16 出版日期:2014-08-25 发布日期:2014-08-25
  • 基金资助:
    山西省留学归国项目“有机废弃物及不同配比下厌氧消化特性与高值产品回收效果研究”（2013-重点7）；山西省攻关项目“山西省城市污泥泥质及其土地利用潜力研究与示范”(20130313007-3)。

Effect of Different Coal-based Humic Acids on the Leaching of Zinc in Soil

  • Received:2014-01-13 Revised:2014-02-16 Online:2014-08-25 Published:2014-08-25

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摘要： 为了研究不同煤基腐殖酸对土壤锌的淋洗效果，从而进一步探讨其调控土壤锌移动性的效果，采用土柱淋洗方法，研究了11种煤基腐殖酸及EDTA在2种淋洗方式（去离子水淋洗和5% KCl溶液淋洗）下对土壤Zn的淋洗效果的影响。结果表明：11种煤基腐殖酸处理下，去离子水淋洗液中Zn含量与CK2相比，1~10号煤基腐殖酸对土壤Zn都有一定的钝化作用，降低了Zn在土壤中的迁移性，而11号煤基腐殖酸增强了Zn在土壤中的迁移性，但11种煤基腐殖酸处理下的淋洗效果均低于EDTA处理下的淋洗效果。同时，5% KCl溶液对Zn的淋洗效果好于去离子水。

关键词: 近代, 近代, 奶牛, 传入, 引进

Abstract: In order to understand the effects of different oal-based humic acids on the zinc leaching in soil and to explore their regulation effects on the mobilization of zinc in soil in further. A soil column leaching method was adopted to study the effects of 11 kinds of coal-based humic acids and EDTA on the zinc leaching in soil under the two types of leaching way (deionized water leaching and 5% KCl solution leaching). The results showed that the coal-based humic acids of No. 1-10 had certain passivation effect on the zinc leaching in soil and reduced the migration of zinc in soil. The coal-based humic acid of No. 11 increased the migration of zinc in soil. But the leaching effects of the coal-based humic acids of No. 1-11 were all lower than that of EDTA. The effect of 5% KCl solution on zinc leaching in soil was better than that of deionized water.